A linear equation can be represented as:
I can't understand these equations.
1 - In the case y=mx+b, what the y variable represents?
If m represent the slope, and b the place where the straight line crosses the yy axis, what the y means?
For example, m=1, x=2 and b=3:
What the number 5 means?
How can I draw a line in the graph that satisfies that Ax+By+C=0?
== Choose at least two different values for x and after plugging each of them in the equation find the corresponding values for y, this way you get two points on the line and you can join them with a straight line.
What's the purpose of the variable A, B and C?
== To determine the relation between the x-coordinate and the y-coordinate of each point of the plane belonging to the line